In no particular order, here are 15 cards from Core 2020 I think are going to be great in 75% decks
Casting Cost: Card Type: Legendary Creature - Assassin // Legendary Creature - Werewolf Beast Power / Toughness: 2 / 2 Card Text: Whenever a creature an opponent controls dies, put a number of +1/+1 counters on Vincent Valentine equal to that creature's power
On top of that, it reads: Whenever one or more Dragons you control attack, draw that many cards, then you may put a permanent card from your hand onto the battlefield. Everyone likes free stuff, and that free stuff is even better if its a 15-mana Earthquake Dragon
Sadly, as much as we might try, its impossible to predict the future of MTG
Sigarda removes one of their already limited options - plus, she's a massive flying beater